Hello Arduino Community,
I'm currently working on a project where I need to select the right Arduino board that can meet my requirements. The project involves wireless communication (WiFi), the Modbus protocol, and control of 230V relays. I would appreciate your input and recommendations on which Arduino board would be best suited for this purpose. And RTC
The odds are slim you will find one. On the bright side you could build one. There are many modules that will do WiFi and most if not all of them are capable of doing your project as it is currently defined (taking a SWAG) this is about the best I can do without more information. If you do not have experience or are working with someone that has experience on mains power I highly recommend if you do not get somebody or else abandon this project. We want try to keep you around for many more years.
Wemos D1 mini
My former setup:
mkr wifi 1010
mkr 485 shield modbus
mkr shield relay
Just wundering if there were something cheaper or better?
There is no "ready to go" arduino board to suit all your requirements in one device. So you need to assemble your project from separate parts.
Change the main board to ESP32. Use standalone modules rather than shields for RS485 and controlling relays.
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